110 lines
3.1 KiB
Python
110 lines
3.1 KiB
Python
import logging
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import math
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import time
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from datetime import datetime
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from queue import Queue
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from threading import Thread
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from typing import Any, Dict
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from ..config import PUSH_INTERVAL, Config
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from .liquidsoap import PypoLiquidsoap
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from .queue import PypoLiqQueue
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logger = logging.getLogger(__name__)
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def is_stream(media_item):
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return media_item["type"] == "stream_output_start"
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def is_file(media_item):
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return media_item["type"] == "file"
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class PypoPush(Thread):
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name = "push"
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daemon = True
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def __init__(
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self,
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push_queue: Queue[Dict[str, Any]],
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pypo_liquidsoap: PypoLiquidsoap,
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config: Config,
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):
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Thread.__init__(self)
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self.queue = push_queue
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self.config = config
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self.pushed_objects = {}
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self.current_prebuffering_stream_id = None
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self.queue_id = 0
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self.future_scheduled_queue: Queue[Dict[str, Any]] = Queue()
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self.pypo_liquidsoap = pypo_liquidsoap
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self.plq = PypoLiqQueue(self.future_scheduled_queue, self.pypo_liquidsoap)
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self.plq.start()
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def main(self):
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loops = 0
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heartbeat_period = math.floor(30 / PUSH_INTERVAL)
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media_schedule = None
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while True:
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try:
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media_schedule = self.queue.get(block=True)
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except Exception as exception:
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logger.exception(exception)
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raise exception
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else:
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logger.debug(media_schedule)
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# separate media_schedule list into currently_playing and
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# scheduled_for_future lists
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currently_playing, scheduled_for_future = self.separate_present_future(
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media_schedule
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)
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self.pypo_liquidsoap.verify_correct_present_media(currently_playing)
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self.future_scheduled_queue.put(scheduled_for_future)
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if loops % heartbeat_period == 0:
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logger.info("heartbeat")
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loops = 0
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loops += 1
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def separate_present_future(self, media_schedule):
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tnow = datetime.utcnow()
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present = []
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future = {}
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sorted_keys = sorted(media_schedule.keys())
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for mkey in sorted_keys:
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media_item = media_schedule[mkey]
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# Ignore track that already ended
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if media_item["type"] == "file" and media_item["end"] < tnow:
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logger.debug(f"ignoring ended media_item: {media_item}")
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continue
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diff_sec = (tnow - media_item["start"]).total_seconds()
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if diff_sec >= 0:
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logger.debug(f"adding media_item to present: {media_item}")
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present.append(media_item)
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else:
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logger.debug(f"adding media_item to future: {media_item}")
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future[mkey] = media_item
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return present, future
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def run(self):
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while True:
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try:
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self.main()
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except Exception as exception:
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logger.exception(exception)
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time.sleep(5)
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